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US Patent 7457408 Calculation unit for executing a cryptographic protocol

Patent 7457408 was granted and assigned to Oberthur Technologies on November, 2008 by the United States Patent and Trademark Office.

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Patent
Patent
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Patent attributes

Current Assignee
Oberthur Technologies
Oberthur Technologies
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
74574081
Patent Inventor Names
Erik Knudsen1
Date of Patent
November 25, 2008
1
Patent Application Number
099786861
Date Filed
October 18, 2001
1
Patent Primary Examiner
‌
Matthew Smithers
1
Patent abstract

A calculation unit in which the inverse of an integer modulo a large number is determined provides a series of binary numbers prime with the large number, divides those numbers into two groups at random, and effects the products of the numbers of each group.

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